:root {
  --primary-color: #0066FF;
  --primary: #1976d2;
  --primary-dark: #0052CC;
  --primary-light: #4dabf7;
  --secondary-color: #FF6B6B;
  --secondary: #0d1117;
  --accent-color: #4ECDC4;
  --dark-bg: #0a0e27;
  --darker-bg: #050812;
  --light-text: #ffffff;
  --light-text-secondary: #e0e0e0;
  --glass-blur: 10px;
  --border-radius: 15px;
  --radius: 15px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --gradient-primary: linear-gradient(135deg, #1976d2 0%, #1565c0 50%, #0d47a1 100%);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  --shadow-strong: 0 8px 32px rgba(0, 0, 0, 0.2);
}

/* ===================== SUPPORT NOTICE STYLES ===================== */
.support-notice {
  background: linear-gradient(135deg, #0066ff 0%, #00ccff 100%);
  color: white;
  padding: 12px 0;
  position: relative;
  z-index: 1000;
  box-shadow: 0 2px 15px rgba(0, 102, 255, 0.3);
  animation: slideDown 0.5s ease-out;
}

@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.notice-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  padding: 0 20px;
  flex-wrap: wrap;
}

.notice-content i.fa-heart {
  color: #ff3366;
  font-size: 18px;
  animation: heartbeat 1.5s infinite;
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.notice-content p {
  margin: 0;
  font-size: 14px;
  line-height: 1.4;
  flex: 1;
  text-align: center;
  max-width: 600px;
}

.notice-content strong {
  color: #fff;
  background: rgba(255, 255, 255, 0.2);
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 600;
}

.share-btn {
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
  padding: 8px 16px;
  border-radius: 25px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
  min-width: 100px;
  justify-content: center;
}

.share-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}

.share-btn.copied {
  background: #10b981;
  border-color: #10b981;
}

.share-btn.copied .btn-text {
  display: none;
}

.share-btn.copied::after {
  content: "Copied!";
  font-weight: 500;
}

.close-notice {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.8);
  cursor: pointer;
  font-size: 16px;
  padding: 4px;
  margin-left: 5px;
  transition: color 0.2s;
}

.close-notice:hover {
  color: white;
}

/* ===================== GALAXY BACKGROUND ===================== */
#galaxy-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -3;
  background: linear-gradient(125deg, #0b0b2d 0%, #1a1a4a 25%, #0f0f2a 50%, #1a1a3a 75%, #0b0b2d 100%);
  overflow: hidden;
}

.stars, .stars2, .stars3 {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform: rotate(45deg);
}

.stars:after, .stars2:after, .stars3:after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(2px 2px at 20px 30px, #eee, transparent),
    radial-gradient(2px 2px at 40px 70px, #fafafa, transparent),
    radial-gradient(1px 1px at 90px 40px, #fff, transparent),
    radial-gradient(1px 1px at 130px 80px, #ddd, transparent),
    radial-gradient(2px 2px at 160px 30px, #eee, transparent);
  background-repeat: repeat;
  background-size: 200px 200px;
  opacity: 0.7;
  animation: starsZoom 60s infinite linear;
}

.stars2:after {
  background-image: 
    radial-gradient(2px 2px at 10px 10px, #fff, transparent),
    radial-gradient(1px 1px at 50px 160px, #eee, transparent),
    radial-gradient(1px 1px at 80px 40px, #fff, transparent),
    radial-gradient(1px 1px at 120px 80px, #ddd, transparent),
    radial-gradient(2px 2px at 180px 120px, #eee, transparent);
  opacity: 0.5;
  animation: starsZoom 80s infinite linear;
  animation-delay: -20s;
}

.stars3:after {
  background-image: 
    radial-gradient(1px 1px at 30px 20px, #fff, transparent),
    radial-gradient(1px 1px at 70px 100px, #eee, transparent),
    radial-gradient(1px 1px at 110px 50px, #fff, transparent),
    radial-gradient(1px 1px at 150px 130px, #ddd, transparent),
    radial-gradient(1px 1px at 190px 80px, #eee, transparent);
  opacity: 0.3;
  animation: starsZoom 100s infinite linear;
  animation-delay: -40s;
}

@keyframes starsZoom {
  0% { transform: scale(1); }
  100% { transform: scale(1.2); }
}

.galaxy-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle at center, rgba(75, 0, 130, 0.4) 0%, transparent 70%);
  box-shadow: 0 0 200px 100px rgba(75, 0, 130, 0.3);
  animation: galaxyPulse 15s infinite alternate;
}

@keyframes galaxyPulse {
  0% { opacity: 0.4; transform: translate(-50%, -50%) scale(1); }
  100% { opacity: 0.7; transform: translate(-50%, -50%) scale(1.1); }
}

.nebula {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.15;
  animation: nebulaFloat 25s infinite alternate ease-in-out;
}

.nebula-1 {
  width: 400px;
  height: 400px;
  background: #4b0082;
  top: 10%;
  left: 15%;
}

.nebula-2 {
  width: 300px;
  height: 300px;
  background: #ff1493;
  top: 60%;
  right: 10%;
  animation-delay: 5s;
}

.nebula-3 {
  width: 350px;
  height: 350px;
  background: #1e90ff;
  bottom: 20%;
  left: 70%;
  animation-delay: 10s;
}

@keyframes nebulaFloat {
  0% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(20px, -30px) scale(1.05); }
  50% { transform: translate(-15px, 20px) scale(0.95); }
  75% { transform: translate(25px, 15px) scale(1.02); }
  100% { transform: translate(-10px, -25px) scale(1); }
}

/* ===================== ANIMATED BACKGROUND ===================== */
.animated-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  pointer-events: none;
}

.floating-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.6;
  animation: float 6s ease-in-out infinite;
}

.orb-1 {
  width: 300px;
  height: 300px;
  background: var(--primary);
  top: 10%;
  left: 5%;
}

.orb-2 {
  width: 200px;
  height: 200px;
  background: #ff6fcb;
  top: 60%;
  right: 10%;
  animation-delay: 2s;
}

.orb-3 {
  width: 250px;
  height: 250px;
  background: #3399ff;
  bottom: 20%;
  left: 15%;
  animation-delay: 4s;
}

.orb-4 {
  width: 180px;
  height: 180px;
  background: #ffd600;
  top: 30%;
  right: 20%;
  animation-delay: 1s;
}

.color-splash {
  position: absolute;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  filter: blur(30px);
  opacity: 0.3;
  animation: splash 8s ease-in-out infinite;
}

.splash-1 {
  background: #00ff88;
  top: 80%;
  left: 80%;
}

.splash-2 {
  background: #ff4444;
  top: 20%;
  right: 10%;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) scale(1); }
  50% { transform: translateY(-20px) scale(1.05); }
}

@keyframes splash {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.3; }
  25% { transform: translate(20px, -15px) scale(1.1); opacity: 0.4; }
  50% { transform: translate(-15px, 10px) scale(0.9); opacity: 0.2; }
  75% { transform: translate(10px, 15px) scale(1.05); opacity: 0.35; }
}

/* ===================== ENHANCED HEADER ===================== */
header {
  width: 100%;
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(75, 0, 130, 0.3);
  box-shadow: 0 2px 30px rgba(0, 0, 0, 0.3);
  transition: var(--transition);
}

header:hover {
  background: rgba(13, 17, 23, 0.92);
  border-bottom: 1px solid rgba(75, 0, 130, 0.5);
  box-shadow: 0 2px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(75, 0, 130, 0.2);
}

#main-menu-container {
  width: 100%;
  height: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 5%;
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
}

#main-menu-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
}

.logo-container {
  display: flex;
  align-items: center;
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  gap: 12px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  padding: 8px 16px;
  border-radius: var(--radius);
  color: white;
}

.logo-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: var(--transition-slow);
}

.logo-link:hover::before {
  left: 100%;
}

.logo-link:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2), 0 0 15px rgba(25, 118, 210, 0.3);
}

.logo-img {
  width: 50px;
  height: 50px;
  transition: var(--transition);
  filter: drop-shadow(0 0 5px rgba(25, 118, 210, 0.5));
}

.logo-link:hover .logo-img {
  filter: drop-shadow(0 0 10px rgba(25, 118, 210, 0.8));
  transform: rotate(5deg) scale(1.05);
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #4b0082 0%, #1976d2 50%, #3399ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.menu-container {
  display: flex;
  align-items: center;
  gap: 20px;
}

.menu-list {
  list-style: none;
  display: flex;
  gap: 8px;
  padding: 0;
  margin: 0;
}

.menu-link {
  text-decoration: none;
  color: #cbd5e1;
  font-weight: 500;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid transparent;
}

.menu-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(75, 0, 130, 0.4) 0%, rgba(25, 118, 210, 0.6) 50%, rgba(51, 153, 255, 0.4) 100%);
  transition: var(--transition-slow);
  z-index: -1;
}

.menu-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, #4b0082 25%, #1976d2 50%, #3399ff 75%, transparent 100%);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.menu-link:hover::before,
.menu-link.active::before {
  left: 0;
}

.menu-link:hover::after,
.menu-link.active::after {
  transform: scaleX(1);
}

.menu-link:hover,
.menu-link.active {
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3), 0 0 15px rgba(25, 118, 210, 0.4);
  border: 1px solid rgba(75, 0, 130, 0.3);
  background: rgba(255, 255, 255, 0.08);
}

.menu-item.dropdown {
  position: relative;
}

.dropdown-arrow {
  transition: var(--transition);
}

.menu-item.dropdown:hover .dropdown-arrow {
  transform: rotate(180deg);
}

.menu-item .dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: rgba(13, 17, 23, 0.95);
  backdrop-filter: blur(20px) saturate(180%);
  min-width: 220px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 20px rgba(75, 0, 130, 0.3);
  border: 1px solid rgba(75, 0, 130, 0.3);
  border-radius: var(--radius);
  z-index: 1000;
  padding: 8px 0;
  list-style: none;
  animation: dropdownSlide 0.3s ease;
}

@keyframes dropdownSlide {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.menu-item .dropdown-content li a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  color: #cbd5e1;
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
  background: rgba(255, 255, 255, 0.03);
  margin: 2px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
}

.menu-item .dropdown-content li a:hover {
  background: linear-gradient(135deg, rgba(75, 0, 130, 0.3) 0%, rgba(25, 118, 210, 0.5) 100%);
  color: white;
  transform: translateX(5px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(75, 0, 130, 0.3);
}

.menu-item.dropdown:hover .dropdown-content {
  display: block;
}

/* ===================== ENHANCED FOOTER ===================== */
footer {
  background: linear-gradient(135deg, var(--secondary) 0%, #1e293b 100%);
  color: white;
  padding: 60px 20px 20px;
  margin-top: 80px;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  align-items: start;
}

.footer-brand {
  text-align: left;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
}

.footer-logo img {
  width: 60px;
  height: 60px;
}

.brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-description {
  color: #cbd5e1;
  line-height: 1.6;
  margin-bottom: 30px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-column-title {
  color: white;
  margin-bottom: 20px;
  font-size: 1.1rem;
  font-weight: 600;
}

.footer-column ul {
  list-style: none;
  padding: 0;
}

.footer-column li {
  margin-bottom: 12px;
}

.footer-column a {
  color: #cbd5e1;
  text-decoration: none;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-column a:hover {
  color: var(--primary-light);
  transform: translateX(5px);
}

.footer-bottom {
  max-width: 1200px;
  margin: 40px auto 0;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-tagline {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #cbd5e1;
  font-size: 0.9rem;
}

.footer-tagline i {
  color: var(--primary);
}

.copyright {
  color: #94a3b8;
  font-size: 0.9rem;
}
html.dark-mode .sub-dialog-content {
  background: rgba(36, 39, 46, 0.95);
  border-color: rgba(255, 255, 255, 0.1);
}

html.dark-mode .export-dialog-header h3,
html.dark-mode .sub-dialog-header h3 {
  color: #f3f6fa;
}

html.dark-mode .export-option {
  background: rgba(36, 39, 46, 0.8);
  border-color: rgba(255, 255, 255, 0.1);
}

html.dark-mode .export-option span {
  color: #f3f6fa;
}

html.dark-mode .export-option small {
  color: #bfc9d1;
}

html.dark-mode .code-tab {
  background: rgba(36, 39, 46, 0.8);
  border-color: rgba(255, 255, 255, 0.1);
  color: #f3f6fa;
}

html.dark-mode .close-btn {
  background: rgba(255, 255, 255, 0.1);
  color: #f3f6fa;
}

html.dark-mode .close-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

html.dark-mode body {
  background: linear-gradient(135deg, var(--dark-bg) 0%, #1a1f3a 50%, var(--darker-bg) 100%);
  color: var(--light-text);
}

html.dark-mode header {
  background: rgba(10, 14, 39, 0.95);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

html.dark-mode .dark-mode-toggle {
  color: var(--accent-color);
}

.dark-mode-toggle:hover {
  transform: rotate(20deg);
}

html.dark-mode .palette-info-section {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

html.dark-mode .palette-description {
  color: var(--light-text-secondary);
}

html.dark-mode .color-strip-label {
  color: var(--light-text);
}

html.dark-mode .visualization-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

html.dark-mode .visualization-title {
  color: var(--light-text);
}

html.dark-mode .palette-colors-display-section {
  background: #0a0e27;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

html.dark-mode .control-btn:disabled {
  background: #555555;
}

html.dark-mode .modal-content {
  background: rgba(30, 30, 40, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

html.dark-mode .slider-group label {
  color: var(--light-text);
}

html.dark-mode .slider::-webkit-slider-thumb,
html.dark-mode .slider::-moz-range-thumb {
  border-color: #fff;
}

html.dark-mode .slider-value {
  color: var(--light-text-secondary);
}

html.dark-mode .color-count-display {
  background: rgba(0, 102, 255, 0.2);
  color: #a3c8ff;
}

html.dark-mode .section-description {
  color: var(--light-text-secondary);
}

html.dark-mode footer {
  background: rgba(0, 0, 0, 0.3);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--light-text-secondary);
}
html.dark-mode .menu-list.mobile.open {
    background: rgba(36, 39, 46, 0.92);
}

/* html.dark-mode svg:not(#typography-svg) text, */
html.dark-mode svg:not(#typography-svg) .visualization-title,
html.dark-mode svg:not(#typography-svg) tspan {
  fill: #ffffff !important;
  color: #ffffff !important;
}
html.dark-mode svg:not(#typography-svg) line,
html.dark-mode svg:not(#typography-svg) path:not([fill]),
html.dark-mode svg:not(#typography-svg) polyline,
html.dark-mode svg:not(#typography-svg) polygon:not([fill]),
html.dark-mode svg:not(#typography-svg) rect:not([fill]) {
  stroke: rgba(255, 255, 255, 0.2) !important;
}
html.dark-mode svg:not(#typography-svg) rect[fill="#ffffff"],
html.dark-mode svg:not(#typography-svg) rect[fill="white"],
html.dark-mode .visualization-card svg:not(#typography-svg) rect[fill="#ffffff"] {
  fill: rgba(255, 255, 255, 0.05) !important;
}
html.dark-mode #bar-chart-svg text,
html.dark-mode #bar-chart-svg line {
  fill: #ffffff !important;
  stroke: rgba(255, 255, 255, 0.2) !important;
}
html.dark-mode #bar-chart-svg .bar-chart-title {
  fill: #ffffff !important;
}
html.dark-mode #pie-chart-svg text {
  fill: #ffffff !important;
}

html.dark-mode #pie-chart-svg .center-text {
  fill: #ffffff !important;
}
html.dark-mode #line-chart-svg text,
html.dark-mode #line-chart-svg line {
  fill: #ffffff !important;
  stroke: rgba(255, 255, 255, 0.2) !important;
}

html.dark-mode #line-chart-svg .axis-label,
html.dark-mode #line-chart-svg .chart-title {
  fill: #ffffff !important;
}
html.dark-mode #radar-chart-svg text,
html.dark-mode #radar-chart-svg line,
html.dark-mode #radar-chart-svg polygon:not([fill]) {
  fill: #ffffff !important;
  stroke: rgba(255, 255, 255, 0.2) !important;
}

html.dark-mode #radar-chart-svg .radar-title {
  fill: #ffffff !important;
}
html.dark-mode #heatmap-svg text,
html.dark-mode #heatmap-svg .heat-title,
html.dark-mode #heatmap-svg .heat-subtitle {
  fill: #ffffff !important;
}

html.dark-mode #heatmap-svg .day-label,
html.dark-mode #heatmap-svg .hour-label {
  fill: rgba(255, 255, 255, 0.8) !important;
}
html.dark-mode #multi-series-svg text,
html.dark-mode #multi-series-svg .series-title {
  fill: #ffffff !important;
}
html.dark-mode #saas-dashboard-svg text:not([fill]),
html.dark-mode #saas-dashboard-svg .dashboard-text {
  fill: #ffffff !important;
}
html.dark-mode #saas-dashboard-svg .card-bg {
  fill: rgba(255, 255, 255, 0.08) !important;
}
html.dark-mode .visualization-card h3,
html.dark-mode .visualization-card p,
html.dark-mode .visualization-card span,
html.dark-mode .visualization-card small {
  color: #ffffff !important;
}
html.dark-mode .button-examples button {
  color: #ffffff !important;
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
}
html.dark-mode .ui-card h4,
html.dark-mode .ui-card small,
html.dark-mode .ui-card i {
  color: #ffffff !important;
}
html.dark-mode .gradient-box span {
  color: #ffffff !important;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8) !important;
}
html.dark-mode .accessibility-item {
  color: #ffffff !important;
  border-color: rgba(255, 255, 255, 0.2) !important;
}
html.dark-mode .accessibility-item h4,
html.dark-mode .accessibility-item p,
html.dark-mode .accessibility-item small {
  color: #ffffff !important;
}
html.dark-mode .color-strip-label {
  color: #ffffff !important;
}
html.dark-mode .palette-description,
html.dark-mode .section-description {
  color: rgba(255, 255, 255, 0.8) !important;
}
html.dark-mode svg:not(#typography-svg) text[fill="#666"],
html.dark-mode svg:not(#typography-svg) text[fill="#333"] {
  fill: #ffffff !important;
}
html.dark-mode #radar-chart-svg polygon[stroke="rgba(0,0,0,0.1)"],
html.dark-mode #radar-chart-svg line[stroke="rgba(0,0,0,0.2)"] {
  stroke: rgba(255, 255, 255, 0.15) !important;
}


* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #0d1428 100%);
  color: #333;
  line-height: 1.6;
  min-height: 100vh;
}

header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  padding: 1rem 2rem;
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--primary-color);
  font-weight: 700;
  font-size: 1.3rem;
  transition: all 0.3s ease;
}

.logo-link:hover {
  color: var(--secondary-color);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.back-btn {
  padding: 0.6rem 1.2rem;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.back-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.dark-mode-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.3rem;
  color: var(--primary-color);
  transition: transform 0.3s ease;
}
.container {
  max-width: 1400px;
  margin: 0 auto;
  /* padding: 3rem 2rem; */
}

/* ===================== HERO SECTION ===================== */
.hero-section {
    padding: 40px 20px 30px;
    text-align: center;
    background: linear-gradient(135deg, rgba(255,255,255,0.9) 0%, rgba(248,250,252,0.8) 100%);
    position: relative;
    overflow: hidden;
    min-height: auto;
    margin-bottom: 30px;
    width: 100%;
}

.hero-content {
    max-width: 100%;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero-title {
    margin-bottom: 15px;
}

.title-gradient {
    font-size: 3.2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #4b0082 0%, #1976d2 50%, #3399ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    line-height: 1.1;
    margin-bottom: 8px;
}

.title-sub {
    font-size: 1.2rem;
    font-weight: 400;
    color: #2c2b2b;
    display: block;
    margin-bottom: 15px;
}

.hero-description {
    font-size: 1rem;
    color: #2c2b2b;
    margin-bottom: 25px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 8px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    background: rgba(255, 255, 255, 0.8);
}

.stat-item i {
    color: #1976d2;
    font-size: 1rem;
}

.stat-item span {
    font-weight: 600;
    color: #334155;
    font-size: 0.9rem;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .hero-section {
        background: linear-gradient(135deg, rgba(13, 17, 23, 0.9) 0%, rgba(30, 41, 59, 0.8) 100%);
    }
    
    .title-sub {
        color: #e2e8f0;
    }
    
    .hero-description {
        color: #cbd5e1;
    }
    
    .stat-item {
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.1);
        color: #e2e8f0;
    }
    
    .stat-item:hover {
        background: rgba(255, 255, 255, 0.1);
    }
    
    .stat-item span {
        color: #e2e8f0;
    }
}
.palette-info-section {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: var(--border-radius);
  padding: 2rem;
  margin-bottom: 3rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}
.palette-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.palette-title-info h1 {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}
.palette-description {
  color: #666;
  font-size: 0.95rem;
}
.palette-colors-strip {
  display: flex;
  gap: 0.5rem;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.color-strip {
  flex: 1;
  height: 60px;
  position: relative;
  cursor: pointer;
}
.color-strip-label {
  position: absolute;
  bottom: -25px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.85rem;
  font-weight: 600;
  color: #333;
  white-space: nowrap;
  margin-top: 0.5rem;
}
.visualizations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.visualization-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}
.visualization-title {
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
  color: #333;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.pie-chart {
  width: 100%;
  height: 300px;
}
.bar-chart {
  width: 100%;
  height: 250px;
}
.ui-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
}
.ui-card {
  border-radius: 12px;
  padding: 1.5rem;
  color: white;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  cursor: pointer;
}
.ui-card h4 {
  font-size: 0.9rem;
  margin-top: 0.5rem;
}
.button-examples {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.btn-example {
  padding: 0.8rem 1.5rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  color: white;
}
.gradient-showcase {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.gradient-box {
  height: 120px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}
.accessibility-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.accessibility-item {
  padding: 1.5rem;
  border-radius: 12px;
  text-align: center;
  border: 2px solid transparent;
  cursor: pointer;
}
.accessibility-item h4 {
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}
.accessibility-item p {
  font-size: 0.85rem;
  opacity: 0.8;
}
.full-width-visualization {
  width: 100%;
  margin-bottom: 2rem;
}
.palette-colors-display-section {
  background: #ffffff;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: var(--border-radius);
  padding: 2rem;
  margin: 3rem 0;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  position: sticky;
  bottom: 0;
  z-index: 100;
  margin-top: 2rem;
  transition: all 0.3s ease;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.left-section {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.left-controls {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.right-controls {
  display: flex;
  gap: 0.5rem;
}
.palette-colors-box {
  width: 300px;
  height: 50px;
  display: flex;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  flex-shrink: 0;
}
.control-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: var(--primary-color);
  color: white;
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 102, 255, 0.3);
}
.count-btn {
  border-radius: 6px;
  width: 22px;
  height: 22px;
  font-size: .7rem;
}
.control-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 102, 255, 0.4);
}
.control-btn:active {
  transform: translateY(0);
}
.control-btn:disabled {
  background: #cccccc;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
#add-color-btn {
  background: #2ECC71;
}
#remove-color-btn {
  background: #FF6B6B;
}
#randomize-colors-btn {
  background: #9B59B6;
}
#reset-colors-btn {
  background: #FF9F43;
}
.modal {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 110px;
  width: 100%;
  height: 100%;
  z-index: 9999;
}
.modal.show {
  display: block;
}
.modal-content {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: var(--border-radius);
  width: 300px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(0, 0, 0, 0.1);
  position: absolute;
}

.modal-body {
  padding: .8rem;
}
.slider-container {
  display: flex;
  flex-direction: column;
  gap: .1rem;
}
.slider-group {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.slider-group label {
  font-weight: 600;
  color: #333;
  font-size: 0.9rem;
}
.slider {
  width: 100%;
  height: 8px;
  -webkit-appearance: none;
  appearance: none;
  border-radius: 4px;
  outline: none;
  margin: 10px 0;
}
.hue-slider {
  background: linear-gradient(90deg,
      hsl(0, 100%, 50%),
      hsl(30, 100%, 50%),
      hsl(60, 100%, 50%),
      hsl(90, 100%, 50%),
      hsl(120, 100%, 50%),
      hsl(150, 100%, 50%),
      hsl(180, 100%, 50%),
      hsl(210, 100%, 50%),
      hsl(240, 100%, 50%),
      hsl(270, 100%, 50%),
      hsl(300, 100%, 50%),
      hsl(330, 100%, 50%),
      hsl(360, 100%, 50%)
    );
}
.saturation-slider {
  background: linear-gradient(90deg,
      hsl(0, 0%, 50%),
      hsl(0, 25%, 50%),
      hsl(0, 50%, 50%),
      hsl(0, 75%, 50%),
      hsl(0, 100%, 50%)
    );
}
.brightness-slider {
  background: linear-gradient(90deg,
      #000000,
      #333333,
      #666666,
      #999999,
      #cccccc,
      #ffffff
    );
}
.temperature-slider {
  background: linear-gradient(90deg,
      #0066FF,
      #4ECDC4,
      #2ECC71,
      #FF9F43,
      #FF6B6B
    );
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: white;
  border: 3px solid #333;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  transition: all 0.2s ease;
}
.slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: white;
  border: 3px solid #333;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}
.slider:hover::-webkit-slider-thumb {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}
.slider-value {
  font-size: 0.85rem;
  color: #666;
  font-weight: 600;
  text-align: right;
}
#undo-btn {
  background: #3498db;
}
#redo-btn {
  background: #2ecc71;
}
#adjust-colors-btn {
  background: #9b59b6;
}
#export-btn {
  width: 115px;
  height: 40px;
  border-radius: 6px;
  background: #0066FF;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  position: relative;
  bottom: 1px;
}
.palette-colors-box {
  width: 300px;
  height: 50px;
  display: flex;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  flex-shrink: 0;
}
.palette-color-item {
  flex: 1;
  height: 100%;
  cursor: pointer;
  position: relative;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}
.palette-color-item:hover {
  transform: scale(1.1);
  z-index: 10;
  box-shadow: 0 0 0 2px white, 0 0 0 4px rgba(0, 0, 0, 0.2);
}
.palette-color-item.active {
  box-shadow: 0 0 0 3px white, 0 0 0 5px var(--primary-color);
  z-index: 20;
}
.palette-color-item.dragging {
  opacity: 0.7;
  transform: scale(1.05);
}
.palette-color-item .color-index {
  background: rgba(0, 0, 0, 0.5);
  color: white;
  font-size: 10px;
  font-weight: bold;
  padding: 2px 4px;
  border-radius: 3px;
  display: none;
}
.palette-color-item:hover .color-index {
  display: block;
}
.palette-info {
  margin-top: 1rem;
  text-align: center;
}
.color-count-display {
  display: inline-block;
  background: rgba(0, 102, 255, 0.1);
  color: var(--primary-color);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}
.section-description {
  color: #666;
  font-size: 0.85rem;
  margin-top: 0.5rem;
}
.download-section {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}
.download-btn {
  padding: 1rem 1.5rem;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.download-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.export-dialog {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
}
.export-dialog-content {
  background: #22262c;
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.2);
  animation: dialogSlideIn 0.3s ease;
  border-radius: 8px;
}
@keyframes dialogSlideIn {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.export-dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 25px 30px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}
.export-dialog-header h3 {
  margin: 0;
  font-size: 1.5rem;
  color: #1e293b;
  display: flex;
  align-items: center;
  gap: 10px;
}
.export-close-btn {
  background: none;
  border: none;
  font-size: 2rem;
  cursor: pointer;
  color: #64748b;
  transition: var(--transition);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}
.export-close-btn:hover {
  background: rgba(0, 0, 0, 0.1);
  color: #dc3545;
}
.export-options-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
  padding: 30px;
  border-radius: 8px;
}
.export-option {
  background: rgba(255, 255, 255, 0.6);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius);
  padding: 15px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  border-radius: 8px;
}
.export-option:hover {
  background: var(--gradient-primary);
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(25, 118, 210, 0.3);
}
.export-option:hover i,
.export-option:hover span,
.export-option:hover small {
  color: white;
}
.export-option i {
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 5px;
}
.export-option span {
  font-weight: 600;
  color: #1e293b;
  font-size: 0.9rem;
}
.export-option small {
  color: #64748b;
  font-size: 0.7rem;
}
.sub-dialog {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(10px);
  z-index: 2001;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sub-dialog-content {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 700px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.2);
  animation: dialogSlideIn 0.3s ease;
}
.sub-dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 25px 30px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}
.sub-dialog-header h3 {
  margin: 0;
  font-size: 1.5rem;
  color: #1e293b;
  display: flex;
  align-items: center;
  gap: 10px;
}
.sub-dialog-close {
  background: none;
  border: none;
  font-size: 2rem;
  cursor: pointer;
  color: #64748b;
  transition: var(--transition);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}
.sub-dialog-close:hover {
  background: rgba(0, 0, 0, 0.1);
  color: #dc3545;
}
.code-tabs {
  display: flex;
  gap: 10px;
  padding: 20px 30px 0;
  flex-wrap: wrap;
}
.code-tab {
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
  color: #334155;
}
.code-tab.active {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(25, 118, 210, 0.3);
}
.code-tab:hover:not(.active) {
  background: rgba(25, 118, 210, 0.1);
}
.code-container {
  padding: 30px;
}
pre {
  background: #1e293b;
  color: #e2e8f0;
  padding: 25px;
  border-radius: var(--radius);
  overflow-x: auto;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 14px;
  line-height: 1.5;
  margin: 0;
  white-space: pre-wrap;
  word-wrap: break-word;
}
.dialog-buttons {
  display: flex;
  gap: 15px;
  justify-content: flex-end;
  padding: 20px 30px;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}
.copy-btn,
.close-btn {
  padding: 12px 30px;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}
.copy-btn {
  background: var(--gradient-primary);
  color: white;
}
.copy-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(25, 118, 210, 0.4);
}
.close-btn {
  background: rgba(0, 0, 0, 0.1);
  color: #64748b;
}
.close-btn:hover {
  background: rgba(0, 0, 0, 0.2);
  transform: translateY(-2px);
}
.copy-notification {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #0066FF;
  color: white;
  padding: 12px 20px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 10000;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  animation: slideIn 0.3s ease;
}
.copy-notification.show {
  display: flex !important;
}
@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }

  to {
    transform: translateX(0);
    opacity: 1;
  }
}
.hover-lift {
  transition: var(--transition);
}
.hover-lift:hover {
  transform: translateY(-5px);
}
.shadow-soft {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}
.shadow-strong {
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.25);
}
.glass-effect {
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border-radius: var(--radius);
}
footer {
  background: rgba(0, 0, 0, 0.05);
  padding: 2rem;
  text-align: center;
  color: #666;
  margin-top: 4rem;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}
footer a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}
footer a:hover {
  color: var(--secondary-color);
}
.notification-toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--primary-color);
  color: white;
  padding: 12px 24px;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  font-weight: 600;
  z-index: 9999;
  transition: transform 0.3s ease;
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: none;
}
.notification-toast.show {
  transform: translateX(-50%) translateY(0);
}
.notification-toast i {
  font-size: 1.2rem;
}
.color-tooltip {
  position: fixed;
  background: rgba(0, 0, 0, 0.9);
  color: white;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  pointer-events: none;
  z-index: 10000;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.2s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
.color-tooltip.show {
  opacity: 1;
}
.color-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: rgba(0, 0, 0, 0.9) transparent transparent transparent;
}
@media (max-width: 1024px) {
  .visualizations-grid {
    grid-template-columns: 1fr;
  }
}

/* ===================== RESPONSIVE DESIGN ===================== */
/* 1200px and below */
@media (max-width: 1200px) {
  .footer-content {
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
  }
  
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 1024px and below */
@media (max-width: 1024px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-links {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 900px and below - Mobile Menu */
@media (max-width: 900px) {
  .menu-container {
    position: relative;
  }
  
  #menuToggle {
    display: flex !important;
    z-index: 1201;
  }
  
  .menu-list {
    display: none;
  }
  
  .menu-list.mobile.open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: fixed;
    top: 0;
    right: 0;
    width: 60vw;
    max-width: 340px;
    height: 100vh;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    box-shadow: -4px 0 24px rgba(0,0,0,0.18);
    z-index: 1200;
    padding: 80px 28px 24px 28px;
    gap: 18px;
    border-radius: 16px 0 0 16px;
    transition: transform 0.3s cubic-bezier(.4,2,.6,1), opacity 0.3s;
    opacity: 1;
    transform: translateX(0);
  }
  
  .menu-list.mobile {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 60vw;
    max-width: 340px;
    height: 100vh;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    box-shadow: -4px 0 24px rgba(0,0,0,0.18);
    z-index: 1200;
    padding: 80px 28px 24px 28px;
    gap: 18px;
    border-radius: 16px 0 0 16px;
    transition: transform 0.3s cubic-bezier(.4,2,.6,1), opacity 0.3s;
    opacity: 0;
    transform: translateX(100%);
  }
  
  body.menu-open {
    overflow: hidden;
  }
  
  .menu-list.mobile.open .menu-item {
    width: 100%;
  }
  
  .menu-list.mobile.open .menu-link {
    width: 100%;
    justify-content: flex-start;
    font-size: 1.1rem;
    padding: 15px 20px;
  }
}

/* 768px and below */
@media (max-width: 768px) {
  .title-gradient {
        font-size: 2.5rem;
    }
    
    .title-sub {
        font-size: 1.1rem;
    }
    
    .hero-description {
        font-size: 0.9rem;
    }
    
    .hero-stats {
        gap: 10px;
    }
    
    .stat-item {
        padding: 8px 12px;
        font-size: 0.9rem;
    }
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }
  
  .support-notice {
    padding: 10px 0;
  }
  
  .notice-content {
    flex-direction: column;
    text-align: center;
    gap: 10px;
    padding: 10px 15px;
  }
  
  .notice-content p {
    font-size: 13px;
  }
  
  .share-btn {
    padding: 6px 14px;
    font-size: 13px;
  }
  
  #main-menu-container {
    padding: 15px 20px;
  }
  
  .logo-text {
    display: none;
  }
  
  .logo-img {
    width: 40px;
    height: 40px;
  }
}

/* 675px and below */
@media (max-width: 675px) {
  #main-menu-container {
    padding: 12px 15px;
  }
  
  .footer-content {
    gap: 30px;
  }
  
  .footer-logo img {
    width: 50px;
    height: 50px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 15px;
  }
}

/* 480px and below - Mobile */
@media (max-width: 480px) {
  .support-notice {
    padding: 8px 0;
  }
  
  .notice-content {
    gap: 8px;
    padding: 8px 10px;
  }
  
  .notice-content p {
    font-size: 12px;
    max-width: 100%;
  }
  
  .share-btn {
    padding: 5px 12px;
    font-size: 12px;
    min-width: 80px;
  }
  
  header {
    padding: 0;
  }
  
  #main-menu-container {
    padding: 10px 12px;
  }
  
  .logo-text {
    display: none;
  }
  
  .logo-img {
    width: 35px;
    height: 35px;
  }
  
  .menu-list.mobile.open {
    width: 100%;
    max-width: 100%;
    right: 0;
    border-radius: 0;
    padding: 70px 20px 20px 20px;
  }
  
  .footer-content {
    padding: 0 15px;
    gap: 25px;
  }
  
  .footer-links {
    grid-template-columns: 1fr;
    gap: 25px;
  }
  
  .footer-logo img {
    width: 45px;
    height: 45px;
  }
  
  .footer-bottom {
    gap: 12px;
  }
}

/* Mobile Animation Reduction */
@media (max-width: 768px) {
  .stars:after,
  .stars2:after,
  .stars3:after {
    animation: none !important;
    opacity: 0.2 !important;
  }
  
  .nebula {
    display: none !important;
  }
  
  .floating-orb {
    animation-duration: 12s !important;
    filter: blur(20px) !important;
    opacity: 0.3 !important;
  }
  
  .color-splash {
    display: none !important;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 1.5rem;
  }
  .palette-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .palette-title-info h1 {
    font-size: 1.5rem;
  }
  .palette-colors-strip {
    margin-top: 1rem;
  }
  .visualization-card {
    padding: 1.5rem;
  }
  .notification-toast {
    width: 90%;
    text-align: center;
  }
  .color-tooltip {
    font-size: 12px;
    padding: 5px 10px;
  }
  .export-options-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 480px) {
  .header-content {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }
  .palette-colors-strip {
    height: 45px;
  }
  .color-strip-label {
    display: none;
  }
  .ui-preview-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .accessibility-grid {
    grid-template-columns: 1fr;
  }
  .export-options-grid {
    grid-template-columns: 1fr;
  }
}

.brand-name,.logo-text,.title-gradient{-webkit-text-fill-color:transparent}.faq-item,.stat-item{backdrop-filter:blur(10px)}#galaxy-background,.faq-answer,.faq-item,.hero-section,.logo-link,.menu-link,.palette-colors-box,footer{overflow:hidden}:root{--primary-color:#0066FF;--primary:#1976d2;--primary-dark:#0052CC;--primary-light:#4dabf7;--secondary-color:#FF6B6B;--secondary:#0d1117;--accent-color:#4ECDC4;--dark-bg:#0a0e27;--darker-bg:#050812;--light-text:#ffffff;--light-text-secondary:#e0e0e0;--glass-blur:10px;--border-radius:15px;--radius:15px;--radius-sm:8px;--radius-lg:20px;--gradient-primary:linear-gradient(135deg, #1976d2 0%, #1565c0 50%, #0d47a1 100%);--transition:all 0.3s cubic-bezier(0.4, 0, 0.2, 1);--transition-slow:all 0.5s cubic-bezier(0.4, 0, 0.2, 1);--shadow-soft:0 2px 8px rgba(0, 0, 0, 0.1);--shadow:0 4px 20px rgba(0, 0, 0, 0.15);--shadow-strong:0 8px 32px rgba(0, 0, 0, 0.2)}.support-notice{background:linear-gradient(135deg,#06f 0,#0cf 100%);color:#fff;padding:12px 0;position:relative;z-index:1000;box-shadow:0 2px 15px rgba(0,102,255,.3);animation:.5s ease-out slideDown}.notice-content strong,.share-btn,html.dark-mode .close-btn:hover{background:rgba(255,255,255,.2)}@keyframes slideDown{from{transform:translateY(-100%);opacity:0}to{transform:translateY(0);opacity:1}}.notice-content{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:center;gap:15px;padding:0 20px;flex-wrap:wrap}.notice-content i.fa-heart{color:#f36;font-size:18px;animation:1.5s infinite heartbeat}@keyframes heartbeat{0%,100%{transform:scale(1)}50%{transform:scale(1.1)}}.notice-content p{margin:0;font-size:14px;line-height:1.4;flex:1;text-align:center;max-width:600px}.notice-content strong{color:#fff;padding:2px 6px;border-radius:4px;font-weight:600}.share-btn{border:1px solid rgba(255,255,255,.3);color:#fff;padding:8px 16px;border-radius:25px;cursor:pointer;font-size:14px;font-weight:500;display:flex;align-items:center;gap:8px;transition:.3s;min-width:100px;justify-content:center}.back-btn,.close-notice{border:none;cursor:pointer}.share-btn:hover{background:rgba(255,255,255,.3);transform:translateY(-1px)}.share-btn.copied{background:#10b981;border-color:#10b981}.share-btn.copied .btn-text{display:none}.share-btn.copied::after{content:"Copied!";font-weight:500}.close-notice{background:0 0;color:rgba(255,255,255,.8);font-size:16px;padding:4px;margin-left:5px;transition:color .2s}.color-splash,.floating-orb,.galaxy-center,.nebula{border-radius:50%}.close-notice:hover,.export-option:hover i,.export-option:hover small,.export-option:hover span{color:#fff}#galaxy-background{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-3;background:linear-gradient(125deg,#0b0b2d 0,#1a1a4a 25%,#0f0f2a 50%,#1a1a3a 75%,#0b0b2d 100%)}.stars,.stars2,.stars3{position:absolute;top:0;left:0;width:100%;height:100%;transform:rotate(45deg)}.stars2:after,.stars3:after,.stars:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background-image:radial-gradient(2px 2px at 20px 30px,#eee,transparent),radial-gradient(2px 2px at 40px 70px,#fafafa,transparent),radial-gradient(1px 1px at 90px 40px,#fff,transparent),radial-gradient(1px 1px at 130px 80px,#ddd,transparent),radial-gradient(2px 2px at 160px 30px,#eee,transparent);background-repeat:repeat;background-size:200px 200px;opacity:.7;animation:60s linear infinite starsZoom}.logo-link::before,.menu-link::before{left:-100%;transition:var(--transition-slow);content:''}.stars2:after{background-image:radial-gradient(2px 2px at 10px 10px,#fff,transparent),radial-gradient(1px 1px at 50px 160px,#eee,transparent),radial-gradient(1px 1px at 80px 40px,#fff,transparent),radial-gradient(1px 1px at 120px 80px,#ddd,transparent),radial-gradient(2px 2px at 180px 120px,#eee,transparent);opacity:.5;animation:80s linear -20s infinite starsZoom}.stars3:after{background-image:radial-gradient(1px 1px at 30px 20px,#fff,transparent),radial-gradient(1px 1px at 70px 100px,#eee,transparent),radial-gradient(1px 1px at 110px 50px,#fff,transparent),radial-gradient(1px 1px at 150px 130px,#ddd,transparent),radial-gradient(1px 1px at 190px 80px,#eee,transparent);opacity:.3;animation:100s linear -40s infinite starsZoom}@keyframes starsZoom{0%{transform:scale(1)}100%{transform:scale(1.2)}}.galaxy-center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:500px;height:500px;background:radial-gradient(circle at center,rgba(75,0,130,.4) 0,transparent 70%);box-shadow:0 0 200px 100px rgba(75,0,130,.3);animation:15s infinite alternate galaxyPulse}@keyframes galaxyPulse{0%{opacity:.4;transform:translate(-50%,-50%) scale(1)}100%{opacity:.7;transform:translate(-50%,-50%) scale(1.1)}}.nebula{position:absolute;filter:blur(60px);opacity:.15;animation:25s ease-in-out infinite alternate nebulaFloat}.nebula-1{width:400px;height:400px;background:indigo;top:10%;left:15%}.nebula-2{width:300px;height:300px;background:#ff1493;top:60%;right:10%;animation-delay:5s}.nebula-3{width:350px;height:350px;background:#1e90ff;bottom:20%;left:70%;animation-delay:10s}@keyframes nebulaFloat{0%{transform:translate(0,0) scale(1)}25%{transform:translate(20px,-30px) scale(1.05)}50%{transform:translate(-15px,20px) scale(.95)}75%{transform:translate(25px,15px) scale(1.02)}100%{transform:translate(-10px,-25px) scale(1)}}.animated-bg{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-2;pointer-events:none}.floating-orb{position:absolute;filter:blur(40px);opacity:.6;animation:6s ease-in-out infinite float}.orb-1{width:300px;height:300px;background:var(--primary);top:10%;left:5%}.orb-2{width:200px;height:200px;background:#ff6fcb;top:60%;right:10%;animation-delay:2s}.orb-3{width:250px;height:250px;background:#39f;bottom:20%;left:15%;animation-delay:4s}.orb-4{width:180px;height:180px;background:#ffd600;top:30%;right:20%;animation-delay:1s}.color-splash{position:absolute;width:100px;height:100px;filter:blur(30px);opacity:.3;animation:8s ease-in-out infinite splash}.splash-1{background:#0f8;top:80%;left:80%}.splash-2{background:#f44;top:20%;right:10%;animation-delay:4s}@keyframes float{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(-20px) scale(1.05)}}@keyframes splash{0%,100%{transform:translate(0,0) scale(1);opacity:.3}25%{transform:translate(20px,-15px) scale(1.1);opacity:.4}50%{transform:translate(-15px,10px) scale(.9);opacity:.2}75%{transform:translate(10px,15px) scale(1.05);opacity:.35}}header:hover{background:rgba(13,17,23,.92);border-bottom:1px solid rgba(75,0,130,.5);box-shadow:0 2px 30px rgba(0,0,0,.4),0 0 20px rgba(75,0,130,.2)}#main-menu-container{width:100%;height:auto;display:flex;justify-content:space-between;align-items:center;padding:15px 5%;max-width:1400px;margin:0 auto;position:relative}.logo-container,.logo-link{display:flex;align-items:center}#main-menu-container::before{content:'';position:absolute;top:0;left:0;right:0;height:1px}.logo-link{gap:12px;transition:var(--transition);position:relative;padding:8px 16px;border-radius:var(--radius);color:#fff}.menu-item .dropdown-content li a,.menu-link{color:#cbd5e1;display:flex;transition:var(--transition);text-decoration:none}.logo-link::before{position:absolute;top:0;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent)}.logo-link:hover::before{left:100%}.logo-link:hover{transform:translateY(-2px);background:rgba(255,255,255,.05);box-shadow:0 4px 15px rgba(0,0,0,.2),0 0 15px 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